Isolating lead body for fault detection
First Claim
1. An implantable medical system, comprising:
- an implantable medical lead, including;
a lead body having an insulator, a first conductor and a second, wherein the first and second conductors are disposed at least partially within the insulator;
an electrode; and
means for selective coupling of the first conductor, wherein the means for selective coupling selectively;
couples the first conductor to the electrode and decouples the first conductor from the second conductor in a first configuration, andcouples the first conductor to the second conductor to define a test pathway and decouples the first conductor from the electrode in a second configuration;
an implantable medical device (IMD), including measurement circuitry configured to obtain an indication of a lead-related condition associated with the test pathway of the lead body, wherein the measurement circuitry controls the means for selective coupling selectively to operate in the first configuration and the second configuration.
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Abstract
Techniques are described for detecting lead-related conditions for implantable electrical leads. In some of the described embodiments, an implantable electrical lead assembly is provided with a coupling member for connecting a conductor and associated insulator(s) to an electrode/sensing element. The implantable medical device controls and performs a measurement of an electrical property of the electrical lead during periods when the conductor is decoupled from the electrode/sensing element. An indication of a lead-related condition is derived based on the measured electrical property. The lead-related condition may be associated with an insulator of a lead body of the electrical lead.
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Citations
11 Claims
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1. An implantable medical system, comprising:
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an implantable medical lead, including; a lead body having an insulator, a first conductor and a second, wherein the first and second conductors are disposed at least partially within the insulator; an electrode; and means for selective coupling of the first conductor, wherein the means for selective coupling selectively; couples the first conductor to the electrode and decouples the first conductor from the second conductor in a first configuration, and couples the first conductor to the second conductor to define a test pathway and decouples the first conductor from the electrode in a second configuration; an implantable medical device (IMD), including measurement circuitry configured to obtain an indication of a lead-related condition associated with the test pathway of the lead body, wherein the measurement circuitry controls the means for selective coupling selectively to operate in the first configuration and the second configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification